Fear of commitment?

We have dated 4 times and there is distance between us so he had to travel 2 hours to see me. To spend more time he wanted to go on vacation with me for a couple days. It was early for me but the connection between us was good so I agreed with it. When we were on vacation he suddenly became cold and was not attracted to me anymore. The lovey, touchy guy dissapeard. We talked about this and he says that he doesn’t know and understand why it became like that and that it might be a fear of commitment. The reason might be that his last relationship of two years ago affected him by time. Mind you this guy was looking for a serious relationship and wants to marry and have children. He’s an adult in age and he says that I am his type, but suddenly lost his attraction on our vacation. So can this be described as a fear of commitment or just not having interest anymore?

Fear of commitment?
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